Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

DESCRIPTION

An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a preamplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received signals to the clearance warning ECU.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT NO. 2 ULTRASONIC SENSOR

 INSPECT NO. 2 ULTRASONIC SENSOR

  1. Remove the No. 2 ultrasonic sensor.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 2 ULTRASONIC SENSOR)

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 2 ULTRASONIC SENSOR)

  1. Disconnect the C9 connector from the clearance warning ECU.

  1. Disconnect the U3 connector from the No. 2 ultrasonic sensor.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Speed Signal Circuit
DESCRIPTION The clearance warning ECU receives the vehicle speed signal from the combination meter. HINT:  A voltage of 12 V or 5 V is output from each ECU and then input to the combin ...
Back Sonar Sensor RH Circuit
DESCRIPTION An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a preamplifier that amplifies them.

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  • Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit

    Toyota Sienna Service Manual: Back Sonar Sensor LH Circuit